Rings, Sabine;
Ischenko, Vladislav;
Jansen, Martin
Darstellung und Strukturanalyse von Lithium- [tetrakis-(methylamino-)aluminat] / Preparation and Crystal Structure of Lithium[tetrakis-(methylamino-)aluminate]
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Media type:
E-Article
Title:
Darstellung und Strukturanalyse von Lithium- [tetrakis-(methylamino-)aluminat] / Preparation and Crystal Structure of Lithium[tetrakis-(methylamino-)aluminate]
Contributor:
Rings, Sabine;
Ischenko, Vladislav;
Jansen, Martin
imprint:
Walter de Gruyter GmbH, 2000
Published in:
Zeitschrift für Naturforschung B, 55 (2000) 8, Seite 730-734
Description:
<jats:title>Abstract</jats:title>
<jats:p> The preparation and spectroscopic data of the new ternary amide LiAl(NHCH<jats:sub>3</jats:sub>)<jats:sub>4</jats:sub> are reported. The structure of the title compound has been determined from X-ray powder diffraction data (tetragonal, 14<jats:sub>1</jats:sub>, a = 14.000(4) Å, c = 9.275(2) Å, 210 reflections, R = 3.75%, weighted R = 5.10%). Both the lithium and the aluminium atoms are coordinated tetrahedrally by nitrogen atoms. Edge-sharing pairs of lithium centered and aluminium centered tetrahedra are connected to each other in helical chains forming a 3D-framework via the remaining vertices. A comparison of the projection of the crystal structure of LiAl(NHCH<jats:sub>3</jats:sub>)<jats:sub>4</jats:sub> along the c-axis to those of cristobalite and of hollandite, (Ba,K)<jats:sub>2</jats:sub> (Mn,Fe)<jats:sub>8</jats:sub>O<jats:sub>16</jats:sub>, reveals similarities with respect to both the connectivity and the topology of ring structures.</jats:p>